What is varnish effect?

What is varnish effect?

A varnish can be clear or tinted, dull or glossy. A gloss varnish reflects more light and enhances the sharpness and saturation of images. A matte or dull varnish increases readability by diffusing light reflected from the page.

What is varnish coating in printing?

Varnish. A varnish is a thin-protective layer that is applied to a printed sheet for protection or appearance. This coating has two options: UV- or aqueous-based. For packaging purposes, varnishes are essentially a clear ink that can be dull, satin, matte, or glossy.

What are different coating that are available in offset printing?

The following coatings are our most popular and you’ll see that in some cases they are used in combination with another coating.

• Aqueous Coating.
• UV Coating.
• Strike-through Varnish/UV & Reticulating Varnish/UV Coatings.
• Strike-through Varnish/UV coating.
• Reticulating Varnish/UV coating.
• Soft Touch Coating.
• UV Grit coating.

What is varnish coating?

varnish, liquid coating material containing a resin that dries to a hard transparent film. Most varnishes are a blend of resin, drying oil, drier, and volatile solvent. Varnish protects and enhances the appearance of wooden floors, interior wood paneling and trim, and furniture.

Is varnish oil based?

While polyurethane is water- or oil-based plastic resin, varnish is older and made from resins, oils, and solvents. This finish gives a more tinted color when applied and requires more coats than polyurethane.

What is varnish in offset printing?

In offset printing, a varnish or aqueous coating is applied to the press sheet in two different ways. Offline varnishing applies the varnish or coating after the press sheet has dried. Both inline and offline varnishing provides your printed piece with added protection from scratching, fingerprints and scuffing.

What is the difference between coating and varnish?

What’s the difference between coating and varnish? They provide better rub protection than varnish and increase durability of the printed piece. These low-cost, clear, water-based vegetable cellulose coatings are applied to the sheet after the ink. Sheets with aqueous coating can be handled almost immediately.

Which is better varnish or polyurethane?

While polyurethane is water- or oil-based plastic resin, varnish is older and made from resins, oils, and solvents. Because of the higher ratio of solids, varnish is less susceptible to ultraviolet light damage. This protection makes varnish an excellent choice for projects such as outside decks and exterior furniture.

Is water-based varnish toxic?

The resins and solvents used in varnish are toxic if ingested. Many varnish products contain benzene, which is a known carcinogen that is highly flammable. The solvents in varnish are extremely pungent, and the fumes can cause drowsiness, headaches, skin irritation and dizziness.

Is water-based varnish good?

Water-Based Varnish As a result of advances in technology, water-based varnishes are proving to be just as effective as solvent based varnishes. They offer a number of benefits, including excellent durability, prompt drying times, and lower odour emissions.

Can printing presses print varnish instead of ink?

A varnish is a coating that can be printed on a press like ink is. You can print the varnish either as a flood, which covers the entire print, or a spot varnish, which allows you to varnish only specific text, images or graphics on your printed piece.

Is varnish UV resistant?

A variant of varnish known as spar or marine varnish offers both UV protection and flexibility, which makes it a favorite among DIY woodworkers, who can confidently apply it to soft woods like pine that bend under extreme conditions.

What is a varnish on a paper?

Varnish Varnish is basically clear ink and can be gloss, satin or matte. A flood varnish covers the entire printed page for protection or sheen. A spot varnish allows you to highlight specific areas of a printed piece and adds shine and depth to specific elements on the page such as a logo or image.

What is the difference between aqueous and varnish coatings?

Aqueous coatings dry faster than varnishes too, which means faster turnaround times on press. Available in gloss or dull finishes, water based coatings offer other advantages as well.

What is the difference between a spot varnish and a flood varnishing?

Varnish is basically clear ink and can be gloss, satin or matte. A flood varnish covers the entire printed page for protection or sheen. A spot varnish allows you to highlight specific areas of a printed piece and adds shine and depth to specific elements on the page such as a logo or image.

What is the best varnish for screen printing?

301.811V14 is a braille varnish with higher reactivity, ideal for rotary screen printing. Makes it possible to erase written text on treated surfaces. Resistant to special markers that once dry can be erased. Screen printing. Result in an equal glossy surface when printed on absorbing paper.